Re: [Xen-devel] To use xcs or not?

[Anthony Liguori <anthony@xxxxxxxxxxxxx>]

Jacob Gorm Hansen wrote:

> Hmm from looking at the code in drivers/xen/evtchn/evtchn.c, it seems 
> if I write to this device, I can unmask local event channels, but 
> there is no notion of a target domain.
Port's come in pairs.  117 is the remote  port number.  Typically, in 
dom0 you would allocate the port pair (0, 117).  The 0 tells xc to 
allocate an unused local port that's connected to the remote port.
Local ports are always unique so there's no need to be domain specific.

> If I want to notify eventchannel #117 in, say, domain 5, how can I do 
> that from dom0 using /dev/xen/evtchn?
> Thanks,
> Jacob
>
>
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--
Anthony Liguori
anthony@xxxxxxxxxxxxx



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